ISE Electrodes

K230890 · Randox Laboratories, Ltd. · CEM · Sep 8, 2023 · Clinical Chemistry

Device Facts

Record IDK230890
Device NameISE Electrodes
ApplicantRandox Laboratories, Ltd.
Product CodeCEM · Clinical Chemistry
Decision DateSep 8, 2023
DecisionSESE
Submission TypeSpecial
Regulation21 CFR 862.1600
Device ClassClass 2

Indications for Use

The ISE Electrodes on the RX Imola can be used for measurement of the electrolytes sodium, potassium and chloride in serum and urine and for use in diagnosis and treatment of electrolyte imbalance. For in vitro diagnostic use only.

Device Story

The ISE Electrodes are an Ion Selective Electrode module for the RX imola automated clinical chemistry analyzer. The system uses direct potentiometry to measure sodium, potassium, and chloride concentrations in serum and urine samples. The analyzer uses a barcode system for sample identification and interacts with a host computer for test selection. The module replaces a discontinued unit; it utilizes specific electrodes and calibration solutions (L-solution, H-solution) to perform quantitative analysis. The device is intended for use in clinical laboratory settings by trained personnel. Output is provided as electrolyte concentration values, which clinicians use to diagnose and manage electrolyte imbalances, potentially improving patient outcomes through accurate monitoring.

Clinical Evidence

Bench testing only; no clinical data provided. Substantial equivalence supported by design control activities, risk analysis, and verification/validation of the modified ISE module.

Technological Characteristics

Ion-selective electrode (ISE) technology for electrolyte measurement. Components include electrodes for potassium, chloride, and sodium. Modification pertains to the ISE module assembly. System is intended for use with the RX Imola clinical chemistry analyzer.

Indications for Use

Indicated for the measurement of sodium, potassium, and chloride electrolytes in serum and urine to aid in the diagnosis and treatment of electrolyte imbalance in patients.

Regulatory Classification

Identification

A potassium test system is a device intended to measure potassium in serum, plasma, and urine. Measurements obtained by this device are used to monitor electrolyte balance in the diagnosis and treatment of diseases conditions characterized by low or high blood potassium levels.

Predicate Devices

Related Devices

Submission Summary (Full Text)

{0} FDA U.S. FOOD & DRUG ADMINISTRATION # SPECIAL 510(k) SUBSTANTIAL EQUIVALENCE DETERMINATION DECISION SUMMARY ## I Background Information: A 510(k) Number K230890 B Applicant Randox Laboratories Limited C Proprietary and Established Names ISE Electrodes D Regulatory Information | Product Code(s) | Classification | Regulation Section | Panel | | --- | --- | --- | --- | | CEM | Class II | 21 CFR 862.1600 - Potassium Test System | CH - Clinical Chemistry | | CGZ | Class II | 21 CFR 862.1170 - Chloride test system | CH - Clinical Chemistry | | JGS | Class II | 21 CFR 862.1665 - Sodium test system | CH - Clinical Chemistry | ## II Review Summary: This 510(k) submission contains information/data on modifications made to the submitter's own CLASS II device requiring 510(k). The following items are present and acceptable. 1. The name and 510(k) number of the SUBMITTER'S previously cleared device. (For a preamendments device, a statement to this effect has been provided.) RX Imola, K052914. 2. Submitter's statement that the INDICATIONS FOR USE/INTENDED USE of the modified device as described in its labeling HAS NOT CHANGED along with the proposed labeling which includes instructions for use, package labeling, and, if available, Food and Drug Administration 10903 New Hampshire Avenue Silver Spring, MD 20993-0002 www.fda.gov {1} advertisements or promotional materials (labeling changes are permitted as long as they do not affect the intended use). 3. A description of the device **MODIFICATION(S)**, including clearly labeled diagrams, engineering drawings, photographs, user's and/or service manuals in sufficient detail to demonstrate that the **FUNDAMENTAL SCIENTIFIC TECHNOLOGY** of the modified device has not changed. The device modification is a change to the ISE module. 4. Comparison Information (i.e., similarities and differences) to the submitter's legally marketed predicate device including, labeling, intended use, and physical characteristics. 5. A Design Control Activities Summary which includes: a) Identification of Risk Analysis method(s) used to assess the impact of the modification on the device and its components, and the results of the analysis. b) Based on the Risk Analysis, an identification of the verification and/or validation activities required, including methods or tests used and acceptance criteria to be applied. The labeling for this modified subject device has been reviewed to verify that the indication/intended use for the device is unaffected by the modification. In addition, the submitter's description of the modification(s) and the comparative information between the modified and unmodified devices demonstrate that the fundamental scientific technology has not changed. The submitter has provided the design control information as specified in The New 510(k) Paradigm and on this basis, I recommend the device be determined substantially equivalent to the previously cleared (or their preamendment) device. K230890 - Page 2 of 2
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